19.81/5.97 YES 20.05/5.99 proof of /export/starexec/sandbox/benchmark/theBenchmark.xml 20.05/5.99 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 20.05/5.99 20.05/5.99 20.05/5.99 Termination w.r.t. Q of the given QTRS could be proven: 20.05/5.99 20.05/5.99 (0) QTRS 20.05/5.99 (1) DependencyPairsProof [EQUIVALENT, 2 ms] 20.05/5.99 (2) QDP 20.05/5.99 (3) QDPOrderProof [EQUIVALENT, 117 ms] 20.05/5.99 (4) QDP 20.05/5.99 (5) QDPOrderProof [EQUIVALENT, 53 ms] 20.05/5.99 (6) QDP 20.05/5.99 (7) PisEmptyProof [EQUIVALENT, 0 ms] 20.05/5.99 (8) YES 20.05/5.99 20.05/5.99 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (0) 20.05/5.99 Obligation: 20.05/5.99 Q restricted rewrite system: 20.05/5.99 The TRS R consists of the following rules: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 Q is empty. 20.05/5.99 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (1) DependencyPairsProof (EQUIVALENT) 20.05/5.99 Using Dependency Pairs [AG00,LPAR04] we result in the following initial DP problem. 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (2) 20.05/5.99 Obligation: 20.05/5.99 Q DP problem: 20.05/5.99 The TRS P consists of the following rules: 20.05/5.99 20.05/5.99 A(b(b(x1))) -> A(a(x1)) 20.05/5.99 A(b(b(x1))) -> A(x1) 20.05/5.99 20.05/5.99 The TRS R consists of the following rules: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 Q is empty. 20.05/5.99 We have to consider all minimal (P,Q,R)-chains. 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (3) QDPOrderProof (EQUIVALENT) 20.05/5.99 We use the reduction pair processor [LPAR04,JAR06]. 20.05/5.99 20.05/5.99 20.05/5.99 The following pairs can be oriented strictly and are deleted. 20.05/5.99 20.05/5.99 A(b(b(x1))) -> A(x1) 20.05/5.99 The remaining pairs can at least be oriented weakly. 20.05/5.99 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(A(x_1)) = [[0A]] + [[1A, 0A, -I]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(b(x_1)) = [[-I], [0A], [-I]] + [[0A, 0A, 0A], [0A, -I, 0A], [1A, 0A, 0A]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(a(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [0A, 0A, 0A], [0A, 0A, 0A]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 20.05/5.99 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (4) 20.05/5.99 Obligation: 20.05/5.99 Q DP problem: 20.05/5.99 The TRS P consists of the following rules: 20.05/5.99 20.05/5.99 A(b(b(x1))) -> A(a(x1)) 20.05/5.99 20.05/5.99 The TRS R consists of the following rules: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 Q is empty. 20.05/5.99 We have to consider all minimal (P,Q,R)-chains. 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (5) QDPOrderProof (EQUIVALENT) 20.05/5.99 We use the reduction pair processor [LPAR04,JAR06]. 20.05/5.99 20.05/5.99 20.05/5.99 The following pairs can be oriented strictly and are deleted. 20.05/5.99 20.05/5.99 A(b(b(x1))) -> A(a(x1)) 20.05/5.99 The remaining pairs can at least be oriented weakly. 20.05/5.99 Used ordering: Matrix interpretation [MATRO] with arctic natural numbers [ARCTIC]: 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(A(x_1)) = [[-I]] + [[0A, 0A, -I]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(b(x_1)) = [[0A], [-I], [-I]] + [[-I, 1A, 0A], [0A, -I, 0A], [-I, 0A, 0A]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 <<< 20.05/5.99 POL(a(x_1)) = [[-I], [-I], [-I]] + [[0A, 0A, 0A], [0A, 0A, 0A], [-I, 0A, 0A]] * x_1 20.05/5.99 >>> 20.05/5.99 20.05/5.99 20.05/5.99 The following usable rules [FROCOS05] with respect to the argument filtering of the ordering [JAR06] were oriented: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (6) 20.05/5.99 Obligation: 20.05/5.99 Q DP problem: 20.05/5.99 P is empty. 20.05/5.99 The TRS R consists of the following rules: 20.05/5.99 20.05/5.99 a(b(b(x1))) -> b(b(a(a(x1)))) 20.05/5.99 a(b(a(x1))) -> b(b(x1)) 20.05/5.99 20.05/5.99 Q is empty. 20.05/5.99 We have to consider all minimal (P,Q,R)-chains. 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (7) PisEmptyProof (EQUIVALENT) 20.05/5.99 The TRS P is empty. Hence, there is no (P,Q,R) chain. 20.05/5.99 ---------------------------------------- 20.05/5.99 20.05/5.99 (8) 20.05/5.99 YES 20.27/6.08 EOF